Impala V8-5.3L (2008)
Seat Occupant Sensor: Technical Service Bulletins
Air Bag System - DTC B0071/B0074/B0081 Code Clearing
Bulletin No.: 07-09-41-004
Date: June 13, 2007
INFORMATION
Subject:
New Procedure for Clearing Passenger Presence System (PPS) and Sensing and Diagnostic Module (SDM) DTCs B0071, B0074, B0081
Models:
2006-2008 Buick Lucerne
2006-2008 Cadillac DTS
2007-2008 Cadillac Escalade, Escalade ESV, Escalade EXT
2006-2007 Monte Carlo
2006-2008 Chevrolet Impala
2007-2008 Chevrolet Silverado, Suburban, Tahoe
2007-2008 GMC Yukon, Yukon Denali, Yukon XL, Yukon XL Denali
A condition exists where the passenger presence system (PPS) may continue to output a fault to the sensing and diagnostic module (SDM) after the PPS
has been cleared. The fault may continue to report to the SDM if the buss has not been allowed to go to sleep prior to clearing B0081 DTC in the SDM.
If B0071, B0074 or B0081/0F is received, the following procedure should be followed to clear the codes.
With the Ignition OFF, open and close the driver door.
With a scan tool, clear PPS DTC (B0071 or B0074).
While continuing to keep the doors closed, wait 60 seconds with the ignition OFF. DO NOT operate any functions in the vehicle during this time.
Verify that the PPS does not have any DTCs. If PPS DTCs exist, please perform the necessary repair. With the scan tool, clear DTC B0081.
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